\begin{tikzpicture}
\clip (0.5,0.95) rectangle (14.05,4.55);
%%
  \definecolor{c1}{rgb}{0.85,0.30,0.30}%
  \definecolor{c2}{rgb}{0.30,0.85,0.30}%
  \definecolor{c3}{rgb}{0.30,0.30,0.85}%
  \definecolor{c4}{rgb}{0.85,0.45,0.00}%
%%
{\footnotesize


\color{c1}% 

\draw (0.75cm, 1.25cm) node {\color{c1}1};

\fill (5,1) -- (10,1) -- (10,1.5) -- (5,1.5);%
\color{black}
\draw [line width=0.016cm] (5,1) -- (10,1) -- (10,1.5) -- (5,1.5) -- (5,1);%
\draw [line width=0.016cm] (7.5cm,1.25cm) circle (0.30cm);%
\node (4) at (7.5cm,1.25cm) [circle] {$b_4$};

\color{c1}
\fill (11,1) -- (13,1) -- (13,1.5) -- (11,1.5);%
\color{black}
\draw [line width=0.016cm] (11,1) -- (13,1) -- (13,1.5) -- (11,1.5) -- (11,1);%
\draw [line width=0.016cm] (12cm,1.25cm) circle (0.30cm);%
\node (7) at (12cm,1.25cm) [circle] {$b_7$};

\color{c2}% 

\draw (0.75cm, 2.25cm) node {\color{c2}2};

\fill (2,2) -- (7,2) -- (7,2.5) -- (2,2.5);%
\color{black}
\draw [line width=0.016cm] (2,2) -- (7,2) -- (7,2.5) -- (2,2.5) -- (2,2);%
\draw [line width=0.016cm] (4.5cm,2.25cm) circle (0.30cm);%
\node (2) at (4.5cm,2.25cm) [circle] {$b_2$};

\color{c2}% 
\fill (9,2) -- (12,2) -- (12,2.5) -- (9,2.5);%
\color{black}
\draw [line width=0.016cm] (9,2) -- (12,2) -- (12,2.5) -- (9,2.5) -- (9,2);%
\draw [line width=0.016cm] (10.5cm,2.25cm) circle (0.30cm);%
\node (6) at (10.5cm,2.25cm) [circle] {$b_6$};

\color{c3}% 

\draw (0.75cm, 3.25cm) node {\color{c3}3};

\fill (1,3) -- (4,3) -- (4,3.5) -- (1,3.5);%
\color{black}
\draw [line width=0.016cm] (1,3) -- (4,3) -- (4,3.5) -- (1,3.5) -- (1,3);%
\draw [line width=0.016cm] (2.5cm,3.25cm) circle (0.30cm);%
\node (1) at (2.5cm,3.25cm) [circle] {$b_1$};

\color{c3}
\fill (6,3) -- (14,3) -- (14,3.5) -- (6,3.5);%
\color{black}
\draw [line width=0.016cm] (6,3) -- (14,3) -- (14,3.5) -- (6,3.5) -- (6,3);%
\draw [line width=0.016cm] (10cm,3.25cm) circle (0.30cm);%
\node (5) at (10cm,3.25cm) [circle] {$b_5$};

\color{c4}% 

\draw (0.75cm, 4.25cm) node {\color{c4}4};

\fill (3,4) -- (8,4) -- (8,4.5) -- (3,4.5);%
\color{black}
\draw [line width=0.016cm] (3,4) -- (8,4) -- (8,4.5) -- (3,4.5) -- (3,4);%
\draw [line width=0.016cm] (5.5cm,4.25cm) circle (0.30cm);%
\node (3) at (5.5cm,4.25cm) [circle] {$b_3$};
  
\draw [] (1) .. controls (2.53474977942105cm,3.24131255514474cm) and (4.46525022057895cm,2.25868744485526cm)  .. (2);
\draw [] (1) .. controls (2.54710815303312cm,3.2552342392259cm) and (5.45289184696688cm,4.2447657607741cm)  .. (3);
\draw [] (2) .. controls (4.50629316775528cm,2.2751726710211cm) and (5.49370683224472cm,4.2248273289789cm)  .. (3);
\draw [] (2) .. controls (4.5325395686728cm,2.24638449236969cm) and (7.4674604313272cm,1.25361550763031cm)  .. (4);
\draw [] (2) .. controls (4.54934666711231cm,2.25163129478057cm) and (9.95065333288769cm,3.24836870521943cm)  .. (5);
\draw [] (3) .. controls (5.51192834691835cm,4.22316121943371cm) and (7.48807165308165cm,1.27683878056629cm)  .. (4);
\draw [] (3) .. controls (5.53849077843899cm,4.25190077918217cm) and (9.96150922156101cm,3.24809922081783cm)  .. (5);
\draw [] (4) .. controls (7.51561737618886cm,1.25999512076087cm) and (9.98438262381114cm,3.24000487923913cm)  .. (5);
\draw [] (4) .. controls (7.52205643866281cm,1.25245071540698cm) and (10.4779435613372cm,2.24754928459302cm)  .. (6);
\draw [] (5) .. controls (10.0015421158466cm,3.24383153661379cm) and (10.4984578841534cm,2.25616846338621cm)  .. (6);
\draw [] (5) .. controls (10.0090535746043cm,3.24094642539575cm) and (11.9909464253957cm,1.25905357460425cm)  .. (7);
\draw [] (6) .. controls (10.5078272707543cm,2.2465212129981cm) and (11.9921727292457cm,1.2534787870019cm)  .. (7);
}
\end{tikzpicture}
